Apparatus for cooling and utilizing air.



C. S. BAVIER.

APPARATUS FOR COOLING AND UTILIZING AIR. APPLICATION FILED M121, 1906.

907,559. Patented Dec, 22, 1908.

wit" u:

sion of means for utilizing wasteor exhaust in effecting the'condensation ofrefrigerant flowing from ventilating systems may be the atmosphere. I have also found that exconstitute a primary absorber for the heat CHARLES S. BAVIER, OF NEW YORK, N. Y.

APPARATUS FOR COOIING AND UTILIZING AIIL' Specification of Letters Patent. Application filed May'Zl, 1906. Serial No. 318,057.

-' Patented Dec. 22, 19cc.

To all whom it may concern:

Beit known that I, CHARLES S. BAVIER, Of New York, in the State of New York, have invented certain new and useful Improvements in Apparatus for Cooling and Utilizing '1 Air and I do hereb declare the following to be a full, clear, an exact description of the invention, such as will enable others skilled in the art to which it appertains to make and '1 use the same.

The object of this invention is the proviair, having special reference to ye tilation exhaust, that is the foul or vitiated ir expelled from a room or compartment to the atmosphere and replaced by atmospheric air under natural conditions or after being cooled munication with the atmosphere at its inlet and exhaust, in contradistinction to the closed systems or circuits which re-chill andcirculate the same air in a confined space.

The primary application of the invention is tothose ventilating systems employing refrigerating media, with the view to effecting a saving in their operating cost and an increase in efficiency. The means to that end is theutilization of the flow, volume, and low temperature of the exhaust air with its resident capacity to absorb 'the higher 'com-. pression temperatures of gas liquefaction.

I have found that exhaust or vitiated air utilized to materially aid condensing-evaporative and water-cooling processes in eflect ingsuch condensation and cooling by absorbing the hi her temperatures of such evaporative s aces and the heated vapors in water cooling towers; and is also available gases by absorbing the higher surface temperatures of the condenser and the humidity surrounding such surfaces. This is especially true of the air issuing from a room ventilated by artificial means because this air necessarily flows rapidly through the system of pipes or flues so that considerable absorbing proper-' ties reside in the exhaust which may be availed of by utilizing the system of its circulation before it is finally discharged into haust or vitiated air when at atem-perature lower than that of the atmospheric air may of the incoming draft of air at atmospheric temperature when the paths of the two are arrangedin proximity.

In the accompanyin drawing I have indicated diagrammatical y a ventilating and cooling system embodying the principle of my nvention.

Referring to the drawing, 1 designates an air cooler and 2 a condenser. 2 is a gas receiver in communication with the condenser and cooler and 2 and 2 are pipes leading from a still or compressor (not shown) to the condenser and cooler, respectively. It will be understood that these elements, or the refrigerating plant of whichthey are part, do

not enter into my invention and that they may be of any preferred construction, it being assumed, however, that in the" cooling room an evaporating agent, such as ammonia gas, is expanded, and that 'in the condenser 2 this gas is reliquefied. The pipe 3 conducts the atmospheric air to the cooler and through pipe 4 the cooled air is transmitted to the room or compartment 5, the exit from which is indicated at 6.

7 is the exhaust flue which I have shown leading from room 5 into one end of the gas condenser. room 2, the discharge outlet 8 from the condenser room being shown at the other end thereof.

In the exhaust flue 7 I have shown a casing or housing 9 having a series of tubes 10 communicating with the flue. The inlet pipe 3 through which atmospheric air. is entrained opens into housing 9 so that the air when passing in throughthe'pipe is retarded for a while in the enlarged area aiforded'by the leave at 15.

,Suitablefans and other features of con-.

'struction, forming no part of this invention,

may of course be employed. I

In use, assuming the system to be employed in the summer season when the temperature to be maintained in room 5 is confollows that the exhaust from the room passsiderably less than that of'the outside air, it-

- cooling tower or upon the heated surface.

ing through tubes 10 is cooler than the air en' tering through duct 3 and consequently as this outside air circulates about tubes 10 in the housing part of its heat units are given up to the exhaust air within the tubes. Thus the incomin air conducted-t0 the cooling room from the primary heat absorber 9 will be lessened in temperature when it reaches the cooler, while t e exhaust after leaving the tubes 10 is increased in temperature correspondingly by the time it enters the condensing room. When the conditions are such that the temperature maintained in room 5 is equal to or higher than that of the atmosphere the exhaust is directed through by-pass 12 to the gas condenser. any conditions it is available for use in this condenser where its lowest temperature (as it issues from flue 7) acts upon the coolest portion of the condenser coils which is adjacent the outlet. The air and cooling Water exert their combined absorbing capacity As the capacity for absorption and evaporation depends upon the extremes of heat and humidity be- But under through the terminal out-' invention the operating cost of ly enhanced. It will I claim as my inventidh: y 1. In a ventilating system 0 on to the atmosphere at its initial point an at its termination and having a compartment to be ventilated, a gas expansion cooling system compnsmg a cooling room having a coil therein for the expansion of-the gases, and a condenser to efiect their liquefaction connected to the 'said coil, a passage'from said cooling room to said compartment, and a passage from said com artment to said condenser, whereby the fl dw and heat absorbing capacity of the exhaust air from said com artment are utilized in the liquefaction o the gases. 7 i

2. In a ventilating system, a compartment to be ventilated, a gas expansion cooling system comprising a cooling room having a coil I therein for the ex ansion of the gases, a condenser to eflcct their liquefaction connected to the said coil, means for conducting atmospheric air to said cooling room, and aheat absorber in the path of the atmospheric air, a

passage from said cooling room tov said compartment, a passage from said compartment to said heat absorber, and a assagefrom said heat absorber to said con enser, whereby the flow and heat absorbing capacity of the exhaust air from said compartment are utilized to partially absorb the heat of the atmos heric air in said absorber and to assist in quefying the gases in said condenser.

In testimony whereof, I have signed this specification in the presence of two subscribmg witnesses. a

- CHARLES S. BAVIER. Witnesses:

GRAFTON L. MoGILL,

ALICE D. Lnm. 

